document.write( "Question 1117947: Write the set using the interval notation:\r
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Algebra.Com's Answer #733120 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "(,) U (,).\r\n" );
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document.write( "The union of two semi-infinite intervals that cover the entire number line with the hole at x= 0.\r\n" );
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